CN219433338U - Microwave cooking device - Google Patents

Abstract

The utility model discloses a microwave cooking device which comprises a cavity, a stirring assembly, a stirring driver and a microwave transmitting device. The cavity is provided with a cooking cavity and a microwave stirring cavity, the cooking cavity and the microwave stirring cavity are arranged up and down and are separated by a partition board, and the bottom wall of the microwave stirring cavity is provided with a microwave feed port. The stirring assembly is arranged in the microwave stirring cavity. The stirring driver set up in the downside of cavity, the stirring driver with stirring subassembly is connected, microwave feed port is followed the circumference setting of stirring driver's output. The microwave transmitting device is arranged at the lower side of the cavity and comprises a waveguide assembly, the waveguide assembly is provided with a waveguide cavity with an upper opening, and the opening is in butt joint with the microwave feed-in port. The microwave cooking device is compact in structure and beneficial to miniaturization design of products.

Description

Microwave cooking device

Technical Field

The utility model relates to the technical field of electric appliances, in particular to a microwave cooking device.

Background

The microwave oven on the market at present comprises a square cavity, wherein the cavity is provided with a cooking cavity, a microwave stirring cavity and a microwave stirring device are arranged on the lower side of the cooking cavity, and a microwave transmitting device is arranged on the side of the cavity. The microwave transmitting device is used for generating microwaves, the microwave transmitting device is provided with a waveguide assembly, and the microwaves generated by the microwave transmitting device are guided into the microwave stirring cavity through the waveguide assembly. The microwave stirring device comprises a stirring assembly and a stirring driver, and the stirring driver can drive the stirring assembly to act in the microwave stirring cavity, so that microwave energy of the microwave stirring cavity uniformly enters the cooking cavity. The existing microwave oven has the defects of large size of the waveguide assembly and insufficient compactness of the product structure, is not beneficial to the miniaturization design of the product, and cannot meet the market demand.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the microwave cooking device provided by the utility model has a compact structure, and is beneficial to the miniaturization design of products.

According to an embodiment of the present utility model, a microwave cooking apparatus includes: the cavity is provided with a cooking cavity and a microwave stirring cavity, the cooking cavity and the microwave stirring cavity are arranged up and down and are separated by a partition board, and a microwave feed inlet is formed in the bottom wall of the microwave stirring cavity; the stirring assembly is arranged in the microwave stirring cavity; the stirring driver is arranged at the lower side of the cavity, the stirring driver is connected with the stirring assembly, and the microwave feed port is arranged along the circumferential direction of the output end of the stirring driver; the microwave transmitting device is arranged at the lower side of the cavity and comprises a waveguide assembly, the waveguide assembly is provided with a waveguide cavity with an upper opening, and the opening is in butt joint with the microwave feed-in port.

The microwave cooking device provided by the embodiment of the utility model has at least the following beneficial effects: the microwave transmitting device and the stirring driver are arranged at the lower side of the cavity, and are reasonable in arrangement, so that the space at the periphery of the cavity is not occupied, the product structure is compact, and the volume is small; in addition, the opening at the upper part of the waveguide cavity is arranged along the circumferential direction of the output end of the stirring driver, so that the microwave transmission path is shorter, the height of the waveguide assembly and the volume of the waveguide assembly are reduced, and the volume of a product is reduced. According to the microwave cooking device, the compact structure of the product is improved through reasonably distributing the positions of the components, and the miniaturized design of the product is facilitated.

According to some embodiments of the utility model, the microwave transmitting apparatus further comprises a microwave generator having an antenna inserted into the waveguide cavity, and a cavity wall of the waveguide cavity is provided with a recess, and the recess is disposed corresponding to an end of the antenna.

According to some embodiments of the utility model, the recess is a spherical cap shaped rotation structure, and the rotation axis of the spherical cap shaped rotation structure coincides with the axis of the antenna.

According to some embodiments of the utility model, the minimum distance from the end of the recess remote from the antenna to the antenna is 8mm to 20mm.

According to some embodiments of the utility model, the wall of the microwave feed-in opening is provided with a protrusion extending into the microwave feed-in opening.

According to some embodiments of the utility model, the protrusion is a semi-circular structure.

According to some embodiments of the utility model, the radius R of the semi-circular structure is 5mm to 20mm.

According to some embodiments of the utility model, at least a portion of the wall of the microwave feed-in is aligned with the side wall of the opening.

According to some embodiments of the utility model, the waveguide assembly is fixed to a lower end face of the cavity, and the stirring driver is fixedly connected with the waveguide assembly.

According to some embodiments of the utility model, the waveguide assembly is provided with a mounting frame, and the agitation driver is fixedly connected to the mounting frame.

According to some embodiments of the utility model, the microwave cooking apparatus further comprises an inner pot, the cooking cavity having an upwardly facing opening, the inner pot being placed in the cooking cavity.

According to some embodiments of the utility model, the microwave cooking device further comprises a housing assembly, the cavity is arranged on the housing assembly, the housing assembly is rotatably connected with a furnace door assembly, the inner pot is provided with an inner pot containing cavity, the inner pot containing cavity is provided with an upward inner pot opening, and the furnace door assembly is used for closing the inner pot opening.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is an exploded view of one embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a partial structure of an embodiment of the present utility model;

FIG. 3 is an exploded view of the structure of FIG. 2;

FIG. 4 is a cross-sectional view of the structure shown in FIG. 2;

FIG. 5 is an enlarged schematic view of FIG. 4 at A;

fig. 6 is a perspective view of a microwave generator according to an embodiment of the present utility model;

FIG. 7 is an exploded view of a waveguide assembly according to one embodiment of the present utility model;

FIG. 8 is a schematic perspective view of a stirring assembly and stirring driver according to one embodiment of the present utility model;

FIG. 9 is an enlarged schematic view of FIG. 4 at B;

fig. 10 is a bottom view of a cavity according to an embodiment of the utility model.

Reference numerals:

a housing assembly 100, a base 110, a side shell 120, a support ring 130;

cavity 200, partition 210, cooking cavity 220, microwave stirring cavity 230, upper through hole 240, microwave feed port 250, and projection 260;

an inner pot 300;

a door assembly 400;

a microwave stirring device 500, a stirring assembly 510, a shaft 511, a stirring driver 520 and an output 521;

the microwave transmission device 600, the microwave generator 610, the antenna 611, the waveguide assembly 620, the waveguide cavity 621, the recess 622, the waveguide 623, the bracket 624, the antenna introduction hole 625, the mounting bracket 626, and the lower through hole 627;

an electrical control assembly 700.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1, there is shown an exploded schematic view of a microwave cooking apparatus for cooking food, the microwave cooking apparatus comprising: the microwave oven comprises an outer housing assembly 100, a cavity 200, an inner pot 300, an oven door assembly 400, a microwave generator 610, a waveguide assembly 620, a stirring assembly 510, a stirring driver 520 and an electric control assembly 700. A cavity 200 is provided in the housing assembly 100, the cavity 200 being for providing a cooking place. The door assembly 400 is hinged to the housing assembly 100. The housing assembly 100 includes a base 110, a side case 120 and a supporting ring 130, the base 110 is connected to the lower end of the side case 120, the supporting ring 130 is connected to the upper end of the side case 120, the base 110, the side case 120 and the supporting ring 130 are connected and enclose an accommodating cavity with an upward opening, the cavity 200 is specifically installed in the accommodating cavity, the oven door assembly 400 is specifically hinged to the supporting ring 130, and the oven door assembly 400 can close or open the opening of the accommodating cavity, so that food can be added or taken out from the cavity 200. The electronic control assembly 700 is used for supplying power to and controlling the microwave generator 610 and the stirring driver 520, and the electronic control assembly 700 may include a plurality of control circuit boards, a power supply circuit board, a plurality of heat dissipation fans, and the like.

Referring to fig. 2 and 3, a microwave generator 610 and a waveguide assembly 620 constitute a microwave transmitting apparatus 600, the microwave generator 610 is used to generate microwaves for cooking, and the waveguide assembly 620 is used to guide the microwaves to the cavity 200. The stirring assembly 510 and the stirring driver 520 form a microwave stirring device 500, and the microwave stirring device 500 is used for stirring and dispersing microwaves entering the cavity 200 so as to improve the efficiency of microwave cooking. The microwave transmitting apparatus 600 is disposed at the lower side of the chamber 200, and the stirring driver 520 is disposed at the lower side of the chamber 200.

Referring to fig. 4 and 5, the chamber 200 is a shell-shaped rotating body having a cylindrical outer contour, the chamber wall of the lower portion of the chamber 200 is provided with a step portion, the step portion is an annular rotating body step, and the height D1 of the step portion is preferably in the range of 2mm to 5mm, but other suitable dimensions may be configured according to the actual situation and are not limited to the above-described embodiments. The above-described step portion is provided with a partition plate 210, and the partition plate 210 is made of a material that can transmit microwaves, such as ceramics, glass, or plastics. The partition 210 is horizontally provided, the partition 210 divides the inner cavity of the cavity 200 into two parts, the upper part is the cooking cavity 220, the lower part is the microwave stirring cavity 230, the cooking cavity 220 and the microwave stirring cavity 230 are arranged up and down, and the cooking cavity 220 and the microwave stirring cavity 230 are separated by the partition 210. The height of the microwave stirring chamber 230 is defined as D2, and D2 is preferably in the range of 15mm to 28mm, but other suitable dimensions may be configured according to practical situations without being limited to the above-described embodiments. It is conceivable that the cavity 200 is not limited to a cylindrical shape, and for example, the cavity 200 may be square, prismatic, hemispherical, etc., and may be specifically configured according to practical situations. It is understood that the shape of the cooking cavity 220 and the microwave stirring cavity 230 divided by the cavity 200 through the partition 210 is not limited to the cylindrical rotating body, and may be, for example, cubic, hemispherical, etc., and may be specifically set according to practical situations.

The cooking cavity 220 has an upwardly facing opening, and the inner pot 300 may be placed in the cooking cavity 220 through the upwardly facing opening of the cooking cavity 220, and the inner pot 300 is supported by the partition 210. The inner pot 300 has an inner pot cavity in which food can be placed in the inner pot cavity of the inner pot 300 for microwave cooking. The inner pot 300 is specifically made of a material that is permeable to microwaves, such as ceramic, glass, or plastic, etc. The food is placed in the inner pot 300 for cooking, and the cooking mode can avoid the direct contact between the food and the cavity wall of the cooking cavity 220, avoid the pollution of the food to the cavity 200, and reduce the later cleaning difficulty. In addition, the microwave cooking device can conveniently realize the functions similar to the electric rice cooker such as rice cooking, porridge cooking, soup cooking and the like by matching with the inner pot 300. The sealing ring is arranged in the furnace door assembly 400, the inner pot 300 is provided with an inner pot containing cavity, the inner pot containing cavity is provided with an upward inner pot opening, and the furnace door assembly 400 can cover and seal the inner pot opening, so that water vapor and oil dirt in the inner pot 300 cannot enter the cooking cavity 220, the cooking cavity 220 is kept clean, and the subsequent cleaning is facilitated. The inner pot 300 is specifically a cylindrical housing, but may be configured in other shapes, such as a square housing, a hemispherical housing, etc., according to practical situations. The microwave stirring chamber 230 at the lower side of the cooking chamber 220 is used for receiving microwaves transmitted by the microwave transmitting device 600, and the microwaves in the microwave stirring chamber 230 pass through the partition 210 and are fed into the cooking chamber 220 so that microwave cooking can be realized. The stirring assembly 510 of the microwave stirring device 500 is specifically disposed in the microwave stirring cavity 230.

Referring to fig. 6, the microwave transmission apparatus 600 specifically generates microwaves through a microwave generator 610, and the microwave generator 610 has an antenna 611 for transmitting the microwaves. The microwave generator 610 specifically employs a magnetron to generate microwaves, however, it is conceivable that the microwave generator 610 is not limited to the magnetron, and the microwave generator 610 may employ other electronic devices capable of generating microwaves, such as a klystron, etc.; it will be appreciated that there are many more electronic devices for generating microwaves in the art, and those skilled in the art may choose from the actual situation.

Referring to fig. 7, waveguide assembly 620 includes a waveguide 623 and a bracket 624. Bracket 624 and waveguide 623 are joined together, particularly by welding, and waveguide 623 and bracket 624 are joined and enclose a waveguide cavity 621 that is open at the top. It is envisioned that the bracket 624 and the waveguide 623 may be coupled together using other coupling means, such as, but not limited to, welding as described above, for example, the waveguide 623 and the bracket 624 may be coupled together by threaded fasteners, such as, for example, screws or a combination of screws and nuts. The waveguide cavity 621 is in particular rectangular parallelepiped shape with a length L of 70mm to 95mm, a width W of 20mm to 50mm and a height H of 40mm to 80mm. Of course, the size of the waveguide cavity 621 may be appropriately configured according to the actual situation, and is not limited to the above-described embodiment. It is conceivable that the waveguide cavity 621 is not limited to the rectangular parallelepiped shape, and may be, for example, a cylindrical shape, a prismatic shape, or the like, and may be configured according to practical circumstances.

The upper end of the waveguide 623 is connected to a horizontally disposed mounting bracket 626, the mounting bracket 626 being adapted to mount the stationary agitator drive 520. The mounting frame 626 and the waveguide 623 are integrally formed, but the mounting frame 626 and the waveguide 623 may be separate structures, i.e., the mounting frame 626 and the waveguide 623 are assembled together after being manufactured separately. The holder 624 is specifically a plate structure, on which an antenna introduction hole 625 for inserting the antenna 611 of the microwave generator 610 is provided, and the microwave generator 610 is mounted and fixed to the holder 624. The waveguide 623 and the bracket 624 that constitute the waveguide assembly 620 may be manufactured by sheet metal processing, or may be manufactured by casting, cutting, or the like, and may be selected according to practical situations. It is envisioned that the waveguide 623 and the bracket 624 may also be of an integrally formed construction. The waveguide assembly 620 is specifically a metal structure or a structure with metal coated on the inner side, so as to guide microwaves and avoid microwave leakage.

Referring to fig. 8 and 3, the stirring assembly 510 includes a metal disc on which three through holes are formed, and the three through holes are uniformly arranged in a circumferential direction. An output 521 of the agitator driver 520 is connected to the agitator assembly 510. The stirring driver 520 is specifically a motor, and the output 521 of the stirring driver 520 is a motor shaft of the motor. The mounting frame 626 coupled to the waveguide assembly 620 has a lower through hole 627 through which a motor shaft of the motor passes, and an upper through hole 240 through which the motor shaft of the motor passes is formed at a cavity bottom wall of the microwave stirring cavity 230. The motor shaft of the motor passes through the lower through hole 627 and the upper through hole 240 and penetrates into the microwave stirring chamber 230, and is connected with the metal disk in the microwave stirring chamber 230. The motor shaft of motor is square axle, and metal disc central point puts and is provided with connecting shaft portion 511, and connecting shaft portion 511 has the socket hole that matches with the motor shaft of motor, and connecting shaft portion 511 passes through this socket hole cover and locates the motor shaft of motor to realize the connection between metal disc and the motor shaft of motor. It is conceivable that the motor shaft of the motor is not limited to a square shaft, but may be a shaft having a non-circular cross section, or a cylindrical shaft, and is connected to the socket hole of the shaft portion 511 by a key connection. It is conceivable that the connection between the motor shaft of the motor and the metal disc is not limited to the above-described connection, for example, the connection between the motor shaft and the metal disc is performed by a coupling. It is understood that the stirring assembly 510 is not limited to the structure using the metal disc, for example, the stirring assembly 510 may also be a structure using an impeller; the stirring driver 520 is not limited to the motor, for example, a linear driver, such as an electromagnet, an electric push rod, or the like, may be used in combination with a linkage mechanism, such as a rack and pinion mechanism, a link mechanism, or the like, for converting linear motion into rotational motion, to specifically implement rotation of the stirring assembly 510, and the stirring driver 520 is specifically an output end of the linkage mechanism.

Referring to fig. 9, a microwave feed port 250 is provided at the bottom wall of the microwave stirring chamber 230, a waveguide chamber 621 is provided to extend vertically, and an opening at the upper part of the waveguide chamber 621 is in butt joint with the microwave feed port 250. The antenna 611 of the microwave generator 610 is inserted into the waveguide cavity 621. The stirring assembly 510 is disposed in the microwave stirring cavity 230, the stirring driver 520 is disposed at the lower side of the cavity 200, the stirring driver 520 is connected with the stirring assembly 510, the stirring driver 520 is used for driving the stirring assembly 510 to rotate, and the microwave feed port 250 is located at a circumferential position of an output end 521 of the stirring driver 520.

In operation of the microwave cooking apparatus, the microwave generator 610 generates microwaves and emits the microwaves to the waveguide cavity 621 through the antenna 611, and the microwaves in the waveguide cavity 621 enter the microwave feed port 250 through the opening in the upper portion of the waveguide cavity 621 and then further enter the microwave stirring cavity 230. The stirring assembly 510 is rotated by the stirring driver 520 to stir and disperse the microwaves so that the microwaves can pass through the partition 210 more uniformly and finally enter the cooking cavity 220, and the microwaves entering the cooking cavity 220 cook the food in the cooking cavity 220.

The microwave cooking device with the structure is characterized in that the microwave transmitting device 600 and the stirring driver 520 are arranged on the lower side of the cavity 200, the arrangement is reasonable, the space on the periphery of the cavity 200 can not be occupied, the product structure is compact, and the volume is small; in addition, the opening at the upper part of the waveguide cavity 621 is arranged along the circumferential direction of the output end 521 of the stirring driver 520, so that the microwave transmission path is shorter, which is beneficial to reducing the height of the waveguide assembly 620 and the volume of the waveguide assembly 620, thereby being beneficial to reducing the volume of the product. The above-mentioned microwave cooking device improves the compact structure of the product by reasonably arranging the positions of the microwave transmitting device 600, the waveguide assembly 620 and the stirring driver 520, and is beneficial to the miniaturization design of the product.

Referring to fig. 4, the microwave cooking apparatus adopting the above structure can achieve that the three of the microwave generator 610, the waveguide assembly 620 and the stirring driver 520 have a height dimension D3 (D3 is the height of the microwave generator 610), the components are not overlapped, the assembly height is small, and the product structure is compact.

Referring to fig. 9, a recess 622 is provided in a sidewall of the waveguide cavity 621 corresponding to an end of the antenna 611, and the recess 622 forms a convex hull outside the waveguide assembly 620. The recess 622 is provided corresponding to the antenna 611, so that a sufficient distance is provided between the antenna 611 and the cavity wall of the waveguide cavity 621, and the probability of occurrence of microwave ignition or microwave leakage is reduced. The recess 622 may specifically take the form of a spherical cap shaped rotating structure with its axis of rotation coincident with the axis of the antenna 611 so that microwave energy passes through the waveguide cavity 621 uniformly and orderly. Further, the minimum distance from the end of the recess 622 away from the antenna 611 to the antenna 611 is in the range of 8mm to 20mm, facilitating better passage of microwaves through the waveguide cavity 621. It is envisioned that recess 622 is not limited to a shape employing a spherical-crown-shaped rotating structure, and recess 622 may employ other shaped structures, such as square, oval, etc., as may be configured by one skilled in the art depending on the particular situation.

Referring to fig. 10, a microwave feed port 250 opened at a bottom wall of the microwave stirring chamber 230 and communicating with the microwave stirring chamber 230 is shaped like a rectangular through hole, the microwave feed port 250 has connected long and short sides, and the long and short sides of the microwave feed port 250 have the same size as the length and width of the waveguide chamber 621. It is conceivable that the shape of the microwave feed-in port 250 is not limited to the above-described embodiment, but may be, for example, circular, elliptical, polygonal, etc., and may be specifically configured according to practical situations. The waveguide cavity 621 is communicated with the microwave stirring cavity 230 through the microwave feed port 250, the hole wall of the microwave feed port 250 is provided with a convex part 260 extending into the microwave feed port 250, the convex part 260 plays a role of dispersing microwaves, and the microwaves can enter the microwave stirring cavity 230 more uniformly after passing through the convex part 260, so that food is heated more uniformly. Specifically, the shape of the protruding portion 260 is a semicircular structure. The effect of dispersing microwaves is better by adopting the protruding part 260 with a semicircular structure. The radius of the semicircular convex portion 260 is R, and R is preferably in the range of 5mm to 20mm, and the dispersion effect is excellent. It is conceivable that the protruding portion 260 is not limited to be semicircular, and may take other shapes, such as rectangular, etc., and those skilled in the art may specifically configure the shape of the protruding portion 260 according to the actual situation. The protruding portion 260 is specifically located on the long side of the microwave feed port 250, and it is conceivable that the location of the protruding portion 260 is not limited to the above embodiment, and for example, the protruding portion 260 may be located on the short side of the microwave feed port 250, or may be located on other hole wall positions of the microwave feed port 250 according to actual situations.

The opening provided at the upper portion of the waveguide cavity 621 is a square opening having long sides and short sides, and the long sides and short sides of the microwave feed-in port 250 are aligned with the long sides and short sides of the opening at the upper portion of the waveguide cavity 621, respectively, so that it is ensured that at least part of the hole wall of the microwave feed-in port 250 is aligned with the side wall of the opening at the upper portion of the waveguide cavity 621, thereby facilitating better feeding of microwaves into the microwave stirring cavity 230. After the long and short sides of the microwave feed-in port 250 are aligned with the long and short sides of the opening of the upper portion of the waveguide assembly 620, respectively, they are connected together, particularly by welding, so that the waveguide assembly 620 is fixed to the lower end surface of the cavity 200. It is envisioned that waveguide assembly 620 and cavity 200 are not limited to being coupled together by welding, but may be secured by, for example, threaded fasteners, snaps, etc., as will be appreciated by those skilled in the art. The stirring driver 520 is specifically fixedly connected with the waveguide assembly 620 through a mounting frame 626 connected with the waveguide assembly 620, and the fixing structure is simple. The agitation driver 520 may be fixedly coupled to the mounting frame 626 by, for example, a threaded fastener connection, a snap fit, or the like. The microwave generator 610 is specifically fixedly coupled to the bracket 624 of the waveguide assembly 620, for example, by a threaded fastener connection, a snap-fit connection, or the like. Since the waveguide assembly 620 is fixed to the lower end surface of the cavity 200 and the stirring driver 520 is fixedly connected with the waveguide assembly 620, the cavity 200, the microwave transmitting device 600 and the microwave stirring device 500 can form a module, thereby facilitating the assembly of the whole machine.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

Of course, the present utility model is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the claims.

Claims (12)

1. A microwave cooking device, comprising:

the cavity is provided with a cooking cavity and a microwave stirring cavity, the cooking cavity and the microwave stirring cavity are arranged up and down and are separated by a partition board, and a microwave feed inlet is formed in the bottom wall of the microwave stirring cavity;

the stirring assembly is arranged in the microwave stirring cavity;

the stirring driver is arranged at the lower side of the cavity, the stirring driver is connected with the stirring assembly, and the microwave feed port is arranged along the circumferential direction of the output end of the stirring driver;

the microwave transmitting device is arranged at the lower side of the cavity and comprises a waveguide assembly, the waveguide assembly is provided with a waveguide cavity with an upper opening, and the opening is in butt joint with the microwave feed-in port.

2. The microwave cooking device of claim 1, wherein: the microwave transmitting device further comprises a microwave generator, the microwave generator is provided with an antenna, the antenna is inserted into the waveguide cavity, a concave portion is formed in the cavity wall of the waveguide cavity, and the concave portion is arranged corresponding to the end portion of the antenna.

3. A microwave cooking device according to claim 2, wherein: the concave part is a spherical crown-shaped rotating structure, and the rotating axis of the spherical crown-shaped rotating structure coincides with the axis of the antenna.

4. A microwave cooking device according to claim 2 or 3, wherein: the minimum distance from the end of the recess away from the antenna to the antenna is 8mm to 20mm.

5. The microwave cooking device of claim 1, wherein: the hole wall of the microwave feed-in port is provided with a protruding part extending into the microwave feed-in port.

6. The microwave cooking device of claim 5, wherein: the protruding part is of a semicircular structure.

7. The microwave cooking device of claim 6, wherein: the radius R of the semi-circular structure is 5mm to 20mm.

8. The microwave cooking device of claim 1, wherein: at least part of the wall of the microwave feed-in port is aligned with the side wall of the opening.

9. The microwave cooking device of claim 1, wherein: the waveguide assembly is fixed on the lower end face of the cavity, and the stirring driver is fixedly connected with the waveguide assembly.

10. The microwave cooking device of claim 9, wherein: the waveguide assembly is provided with a mounting frame, and the stirring driver is fixedly connected with the mounting frame.

11. The microwave cooking device of claim 1, wherein: the microwave cooking device further includes an inner pot having an upwardly facing opening in the cooking cavity, the inner pot being disposed in the cooking cavity.

12. The microwave cooking device of claim 11, wherein: the microwave cooking device further comprises a shell assembly, the cavity is arranged in the shell assembly, the shell assembly is rotationally connected with a furnace door assembly, the inner pot is provided with an inner pot containing cavity, the inner pot containing cavity is provided with an upward inner pot opening, and the furnace door assembly is used for sealing the inner pot opening.